<template>
   <div class="app-container">
     <h2 style="text-align: center;">发布新课程</h2>
        <el-steps :active="3" process-status="wait" align-center style="marginbottom:
                    40px;">
            <el-step title="填写课程基本信息" icon="el-icon-edit"></el-step>
            <el-step title="创建课程大纲" icon="el-icon-upload"></el-step>
            <el-step title="最终发布" icon="el-icon-picture"></el-step>
        </el-steps>
        <!-- <el-form label-width="120px">
            <el-form-item>
                <el-button @click="previous">返回修改</el-button>
                <el-button :disabled="saveBtnDisabled" type="primary"
                @click="publish">发布课程</el-button>
            </el-form-item>
        </el-form> -->

        <div class="ccInfo">
      <img :src="coursePublish.cover">
      <div class="main">
        <h2>{{ coursePublish.title }}</h2>
        <p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
        <p><span>所属分类：{{ coursePublish.subjectLevelOne }} — {{ coursePublish.subjectLevelTwo }}</span></p>
        <p>课程讲师：{{ coursePublish.teacherName }}</p>
        <h3 class="red">￥{{ coursePublish.price }}</h3>
      </div>
    </div>

    <div>
      <el-button @click="previous">返回修改</el-button>
      <el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
    </div>
   </div>
</template>
<script>
import course from '@/api/edu/course'
      export default {
        data() {
            return {
            saveBtnDisabled: false , // 保存按钮是否禁用
            courseId:'',
            coursePublish:{}

            }
        },
        created() {
          //获取路由课程id值
         if(this.$route.params && this.$route.params.id ){
            this.courseId  = this.$route.params.id
          }
      //调用接口方法根据课程id查询
          this.getCoursePublishId();
            },
        methods: {
            //根据课程id查询
            getCoursePublishId(){
              course.getPublishCourseInfo(this.courseId)
                    .then(response=>{
                      this.coursePublish =  response.data.publishCourse
                    })
              },

            //跳转到上一步,返回修改
            previous() {
            console.log('previous')
            this.$router.push({ path: '/course/chapter/'+this.courseId})
            },

            publish() {
             this.$confirm('你确定发布该课程吗 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
                        })
                .then(() => {  
                    course.publishCourse(this.courseId)
                        .then(response=>{
                 this.$message({   
                    type: 'success',
                    message: '课程发布成功!'
                              })

             //跳转到课程列表页面
               this.$router.push({ path:'/course/list' })
             })

           })   
              }
                
  }
 }
</script>
<style scoped>
.ccInfo {
    background: #f5f5f5;
    padding: 20px;
    overflow: hidden;
    border: 1px dashed #DDD;
    margin-bottom: 40px;
    position: relative;
}
.ccInfo img {
    background: #d6d6d6;
    width: 500px;
    height: 278px;
    display: block;
    float: left;
    border: none;
}
.ccInfo .main {
    margin-left: 520px;
}

.ccInfo .main h2 {
    font-size: 28px;
    margin-bottom: 30px;
    line-height: 1;
    font-weight: normal;
}
.ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
}

.ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
}
.ccInfo .main h3 {
    left: 540px;
    bottom: 20px;
    line-height: 1;
    font-size: 28px;
    color: #d32f24;
    font-weight: normal;
    position: absolute;
}
</style>